JPH10328583A - Pressurized air feeder for electrostatic coating bell gun - Google Patents
Pressurized air feeder for electrostatic coating bell gunInfo
- Publication number
- JPH10328583A JPH10328583A JP9155847A JP15584797A JPH10328583A JP H10328583 A JPH10328583 A JP H10328583A JP 9155847 A JP9155847 A JP 9155847A JP 15584797 A JP15584797 A JP 15584797A JP H10328583 A JPH10328583 A JP H10328583A
- Authority
- JP
- Japan
- Prior art keywords
- air
- pressurized air
- regulator
- gun
- turbine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
- B05B5/0403—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member
- B05B5/0407—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member with a spraying edge, e.g. like a cup or a bell
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
- B05B5/0426—Means for supplying shaping gas
Landscapes
- Electrostatic Spraying Apparatus (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はエアータービンによ
り駆動されエアー軸受により支持されて高速回転するベ
ル型の霧化頭の内周面から遠心力と静電界の作用により
塗料を微粒化して放出するとともに、霧化頭の周りに設
けた多数のエアー噴出孔から加圧空気を噴出させて塗料
の放出角度を規制するようにした静電塗装用ベル式ガン
の加圧空気供給装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bell-shaped atomizing head which is driven by an air turbine, is supported by an air bearing, and rotates at a high speed. Also, the present invention relates to a pressurized air supply device for a bell gun for electrostatic coating in which pressurized air is blown out from a large number of air blowout holes provided around an atomizing head to regulate a discharge angle of paint.
【０００２】[0002]
【従来の技術】上記のような静電塗装用ベル式ガンの加
圧空気供給装置においては、エアータービン駆動用、エ
アー軸受作動用及び塗料の放出角度規制用の３本の経路
が必要であって、軸受の焼き付きを防止するためには必
ずエアータービン用の経路の開閉弁を開く前にエアー軸
受用の経路の開閉弁を開き、また、エアータービン用の
経路の開閉弁を閉じてからエアー軸受用の経路の開閉弁
を閉じなければならない。2. Description of the Related Art The pressurized air supply device for a bell gun for electrostatic coating as described above requires three paths for driving an air turbine, operating an air bearing, and regulating the discharge angle of paint. Therefore, to prevent bearing seizure, always open the air bearing path open / close valve before opening the air turbine path open / close valve, and close the air turbine path open / close valve before opening the air turbine path open / close valve. The on-off valve in the path for the bearing must be closed.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、３本の
経路に各々開閉弁があるためその開閉順序を間違えるこ
とによりエアー軸受を焼き付けさせるおそれがあり、ま
た、手動式の場合には接続されるエアーホースの本数が
多く、操作性が悪いという課題があった。However, since there are on-off valves in each of the three paths, there is a risk of burning the air bearing by arranging the on-off order incorrectly. There was a problem that the number of hoses was large and operability was poor.
【０００４】[0004]
【課題を解決するための手段、作用及び効果】本発明は
このような課題を解決するための手段として、加圧空気
供給源とガン本体とを２本の経路で接続し、一の経路を
エアータービンに接続し、他の経路を分岐してエアー軸
受と空気噴出孔に接続するとともにその空気噴出孔への
分岐路に可変絞り弁を設けたから、経路と開閉弁が２つ
ずつとなって開閉の順序を間違える可能性が小さくなる
とともに手動式の場合には接続されるエアーホースの本
数が減って操作性が向上する効果がある。According to the present invention, as a means for solving such a problem, a pressurized air supply source and a gun body are connected by two paths, and one path is connected. Connected to the air turbine, branched off the other path and connected to the air bearing and air outlet, and provided a variable throttle valve on the branch to the air outlet, so there were two paths and two on-off valves. The possibility of erroneous opening / closing order is reduced, and in the case of the manual type, the number of connected air hoses is reduced, thereby improving the operability.
【０００５】[0005]
【発明の実施の形態】以下、本発明の一実施の形態を添
付図面に基づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.
【０００６】図１〜４において、１は手動式の静電塗装
用ベル式ガンの本体であって、図１にエアータービン２
の駆動用加圧空気の供給経路を示し、同図において３は
本体１のグリップ４に差し込まれたパイプからなる経路
であり、加圧空気は経路３から本体１に形成された経路
５を通り、エアータービン２を回転駆動してから排気孔
６を通って排出されるようになっており、エアータービ
ン２にはベル型の霧化頭７が連結されていて高速度で回
転し、内周面に供給された液体塗料が遠心力と図示しな
い高電圧発生器により形成される静電力により微粒化さ
れて図示しない被塗装物に塗着するようになっている。1 to 4, reference numeral 1 denotes a main body of a manual type bell gun for electrostatic coating, and FIG.
In the figure, reference numeral 3 denotes a path composed of a pipe inserted into a grip 4 of the main body 1, and pressurized air passes through a path 5 formed in the main body 1 from the path 3. After the air turbine 2 is driven to rotate, the air is exhausted through an exhaust hole 6. A bell-shaped atomizing head 7 is connected to the air turbine 2 and rotates at a high speed. The liquid paint supplied to the surface is atomized by centrifugal force and electrostatic force generated by a high voltage generator (not shown), and is applied to an object (not shown).
【０００７】図２はエアータービン２と霧化頭７の連結
軸８を受けるエアー軸受９に加圧空気を供給する経路を
示し、同図において１０は本体１のグリップ４に差し込
まれたパイプからなる経路であり、加圧空気は経路１０
から本体１に形成された経路１１を通り、エアー軸受９
に供給される。FIG. 2 shows a path for supplying pressurized air to an air bearing 9 which receives a connection shaft 8 between the air turbine 2 and the atomizing head 7. In FIG. 2, reference numeral 10 denotes a pipe from a pipe inserted into the grip 4 of the main body 1. And the pressurized air passes through the path 10
From the air bearing 9 through a path 11 formed in the main body 1
Supplied to
【０００８】エアー軸受９はラジアルメタル１２に形成
された通孔１３を通って連結軸８の外周に流入するとと
もにスラストメタル１４に形成された通孔１５を通って
スラストプレート１６の外周に流入することにより、エ
アータービン２と霧化頭７を半径方向及び軸方向に極め
て小さい摺動抵抗で回転自由に支持している。The air bearing 9 flows into the outer periphery of the connecting shaft 8 through a through hole 13 formed in the radial metal 12, and also flows into the outer periphery of the thrust plate 16 through a through hole 15 formed in the thrust metal 14. Thus, the air turbine 2 and the atomizing head 7 are rotatably supported in the radial and axial directions with extremely small sliding resistance.
【０００９】図３は霧化頭７の周りに形成された多数の
エアー噴出孔１７から加圧空気を噴出して霧化頭７から
半径方向に放出される塗料粒子が図示しない被塗物の方
向へ向くように規制する加圧空気の供給経路を示し、エ
アー軸受９に加圧空気を供給する経路１０から分岐した
経路１８がエアー噴出孔１７に連通しており、経路１０
と経路１８の分岐点には本体１に螺入された絞り弁１９
が介在していて、これを回転することにより経路１８へ
の加圧空気の流入量が調節されるようになっている。FIG. 3 shows that the paint particles emitted from the atomizing head 7 in the radial direction by blowing out pressurized air from a large number of air ejection holes 17 formed around the atomizing head 7 are formed on an object (not shown). 2 shows a supply path of the pressurized air for regulating the air bearing 9 so as to be directed to the air bearing 9, and a path 18 branched from a path 10 for supplying the pressurized air to the air bearing 9 communicates with the air ejection hole 17.
And a throttle valve 19 screwed into the main body 1 at a branch point of the path 18.
And the amount of pressurized air flowing into the passage 18 is adjusted by rotating the shaft.
【００１０】図４はガンの本体１の外の加圧空気の回路
を示し、加圧空気供給源２０からエアータービン２に加
圧空気を供給する経路３には、フィルタ２１、手動開閉
弁２２及びレギュレータ２３が介設されており、他の経
路１０はフィルタ２１とレギュレータ２２の間から分岐
して手動開閉弁２４とレギュレータ２５が介設されてい
る。FIG. 4 shows a circuit of pressurized air outside the main body 1 of the gun, and a filter 21 and a manual on-off valve 22 are provided in a passage 3 for supplying pressurized air from a pressurized air supply source 20 to the air turbine 2. A regulator 23 is interposed, and the other path 10 is branched from between the filter 21 and the regulator 22, and a manual on-off valve 24 and a regulator 25 are interposed.
【００１１】したがって、霧化頭７の回転数、すなわ
ち、エアータービン２の回転数はレギュレータ２３によ
り調節され、エアー軸受９への加圧空気の供給量はレギ
ュレータ２５で、また、エア噴出孔１７への加圧空気の
供給量はレギュレータ２５と絞り弁１９により調節する
ことができる。Therefore, the number of revolutions of the atomizing head 7, that is, the number of revolutions of the air turbine 2 is adjusted by the regulator 23, the amount of pressurized air supplied to the air bearing 9 is regulated by the regulator 25, and the air ejection holes 17 are controlled. The amount of pressurized air supplied to the pressure regulator can be adjusted by the regulator 25 and the throttle valve 19.
【図１】エアータービンを駆動するための加圧空気の供
給経路を示すガンの本体の断面図である。FIG. 1 is a sectional view of a main body of a gun showing a supply path of pressurized air for driving an air turbine.
【図２】エアー軸受を作動させるための加圧空気の供給
経路を示すガンの本体の断面図である。FIG. 2 is a sectional view of the main body of the gun showing a supply path of pressurized air for operating an air bearing.
【図３】塗料粒子の放出方向を規制す加圧空気の供給経
路を示すガンの本体の断面図である。FIG. 3 is a cross-sectional view of the main body of the gun showing a supply path of pressurized air for restricting a discharge direction of paint particles.
【図４】ガンの本体への加圧空気の供給回路図である。FIG. 4 is a circuit diagram for supplying pressurized air to a main body of the gun.
１：ガンの本体 ２：エアータービン ３、５、１１、１０、１８：経路 ９：エアー軸受 １９：絞り弁 ２０：加圧空気供給源 ２２、２４：手動開閉弁 ２３、２４：レギュレータ 1: Gun body 2: Air turbine 3, 5, 11, 10, 18: Path 9: Air bearing 19: Throttle valve 20: Pressurized air supply source 22, 24: Manual open / close valve 23, 24: Regulator
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成９年５月３０日[Submission date] May 30, 1997
【手続補正１】[Procedure amendment 1]
【補正対象書類名】図面[Document name to be amended] Drawing
【補正対象項目名】図２[Correction target item name] Figure 2
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図２】 FIG. 2
Claims (1)
受により支持されて高速回転するベル型の霧化頭の内周
面から遠心力と静電界の作用により塗料を微粒化して放
出するとともに、前記霧化頭の周りに設けた多数の空気
噴出孔から加圧空気を噴出させて塗料の放出角度を規制
するようにした静電塗装用ベル式ガンの加圧空気供給装
置において、加圧空気供給源とガン本体とを２本の経路
で接続し、一の前記経路を前記エアータービンに接続
し、他の前記経路を分岐して前記エアー軸受と前記エア
ー噴出孔に接続するとともに、該空気噴出孔への分岐路
に可変絞り弁を設けたことを特徴とする静電塗装用ベル
式ガンの加圧空気供給装置。The present invention relates to a bell-shaped atomizing head which is driven by an air turbine and supported by an air bearing and rotates at high speed. In a pressurized air supply device of a bell gun for electrostatic coating, in which pressurized air is blown out from a large number of air blowout holes provided around the head to regulate the discharge angle of paint, a pressurized air supply source and The gun body is connected by two routes, one of the routes is connected to the air turbine, the other is branched and connected to the air bearing and the air outlet, and to the air outlet. A pressurized air supply device for a bell gun for electrostatic coating, characterized in that a variable throttle valve is provided in a branch of (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9155847A JPH10328583A (en) | 1997-05-28 | 1997-05-28 | Pressurized air feeder for electrostatic coating bell gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9155847A JPH10328583A (en) | 1997-05-28 | 1997-05-28 | Pressurized air feeder for electrostatic coating bell gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10328583A true JPH10328583A (en) | 1998-12-15 |
Family
ID=15614810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9155847A Pending JPH10328583A (en) | 1997-05-28 | 1997-05-28 | Pressurized air feeder for electrostatic coating bell gun |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10328583A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009022930A (en) * | 2007-07-23 | 2009-02-05 | Asahi Sunac Corp | Paint gun |
-
1997
- 1997-05-28 JP JP9155847A patent/JPH10328583A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009022930A (en) * | 2007-07-23 | 2009-02-05 | Asahi Sunac Corp | Paint gun |
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